# AD 75-07-02: Air Filter Seal

- Type: Airworthiness directive
- Status: Current
- Products: Cessna F177RG, 177, 177A, 177B and 177RG
- Effective: March 26, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-2132
- Registered aircraft: 2,161 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F02777FDB09463BE86256A34006503DB.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-07-02

## The airworthiness directive

75-07-02 CESSNA: Amendment 39-2132. Applies to Models 177, 177RG and F177RG airplanes.

Compliance: Required as indicated, unless already accomplished.

To preclude separation of the foam rubber air filter seal, within 25 hours' time in service, after the effective date of this AD, accomplish the following:

A) On Models 177 (Serial Numbers 17702040 through 17702220); 177RG (Serial Numbers 177RG0433 through 177RG0625); and Model F177RG (Serial Numbers F177RG0093 through F177RG0122) airplanes, remove the air filter seal attached with double-backed adhesive tape and replace with a new P11-0766 air filter seal using EC1300LP adhesive in accordance with Cessna Service Letter SE 75-3, dated January 24, 1975, or later revision.

B) On Models 177 (Serial Numbers 601 and 17700001 through 17702039); 177RG (Serial Numbers R177RG0001 through 177RG0442); and F177RG (Serial Numbers F177RG0001 through F177RG0092) airplanes, visually inspect the air filter for the date of manufacture and on those air filters manufactured between November 1, 1973, and November 1, 1974, replace the air filter seal in accordance with Paragraph A above.

C) Any alternate method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

This amendment becomes effective March 26, 1975.

## Affected data sheets (3) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A13CE](https://openairdocs.org/tcds/A13CE): Textron Aviation Inc.; names 3 of 3 models: 177, 177A, 177B
- [TCDS A20CE](https://openairdocs.org/tcds/A20CE): Textron Aviation Inc.; names 1 of 1 models: 177RG
- [TCDS A26EU](https://openairdocs.org/tcds/A26EU): Textron Aviation Inc.; names 1 of 1 models: F177RG

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 2,161 (2,161 by airframe model, 0 by engine model)
- Makers: Cessna 2,160, Reims Aviation S A 1

Models with the most aircraft:

- [Cessna 177B](https://openairdocs.org/model/cessna-177b): 843 aircraft (airframe model)
- [Cessna 177RG](https://openairdocs.org/model/cessna-177rg): 788 aircraft (airframe model)
- [Cessna 177](https://openairdocs.org/model/cessna-177): 446 aircraft (airframe model)
- [Cessna 177A](https://openairdocs.org/model/cessna-177a): 81 aircraft (airframe model)
- [Cessna F177RG](https://openairdocs.org/model/cessna-f177rg): 2 aircraft (airframe model)
- [Reims Aviation S A F177RG](https://openairdocs.org/model/reims-aviation-s-a-f177rg): 1 aircraft (airframe model)

All 7 models: https://openairdocs.org/ad/75-07-02/models.md
Every aircraft: https://openairdocs.org/ad/75-07-02/aircraft.md

Its text cites no advisory circulars or STCs.

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